*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{display:flex;flex-direction:column;background:#eef1f5;font:15px "Noto Sans CJK SC","PingFang SC","Microsoft YaHei",sans-serif;color:#111827}
.top{display:flex;align-items:center;gap:12px;padding:10px 16px;background:#0f172a;color:#e5e7eb;flex-wrap:wrap}
.logo{font-size:18px;color:#fff;margin-right:8px}
.top select{font:inherit;padding:4px 6px;border-radius:6px}
.colors{display:flex;gap:6px}
.colors button{width:22px;height:22px;border-radius:50%;border:2px solid transparent;padding:0;cursor:pointer}
.colors button.on{border-color:#fff;box-shadow:0 0 0 2px #0f172a inset}
.sp{flex:1}
.top button{font:inherit;padding:6px 12px;border-radius:6px;border:1px solid #334155;background:#1e293b;color:#e5e7eb;cursor:pointer}
.top button.pri{background:#f59e0b;border-color:#f59e0b;color:#111827;font-weight:700}
.top button.pri2{background:#10b981;border-color:#10b981;color:#06281d;font-weight:700}
.wrap{flex:1;display:grid;grid-template-columns:minmax(300px,1fr) minmax(360px,1.25fr);gap:12px;padding:12px;min-height:0}
.ed,.pv{display:flex;flex-direction:column;min-height:0;background:#fff;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.06);overflow:hidden}
.hd{padding:8px 12px;border-bottom:1px solid #e5e7eb;font-weight:700;display:flex;align-items:center;gap:10px}
.hd small{font-weight:400;color:#6b7280}
#src{flex:1;border:0;resize:none;padding:12px 14px;font:14px/1.65 "Noto Sans Mono CJK SC","DejaVu Sans Mono",monospace;outline:none}
.scroller{flex:1;overflow:auto;background:#cbd5e1;padding:16px}
.sheet{position:relative;transform-origin:top left}
.sheet .resume{box-shadow:0 4px 18px rgba(0,0,0,.18)}
.guides{position:absolute;inset:0;pointer-events:none}
.guides div{position:absolute;left:0;width:210mm;border-top:2px dashed #ef4444}
.guides span{position:absolute;right:4px;top:2px;background:#ef4444;color:#fff;font-size:12px;padding:0 6px;border-radius:3px}
.pages{font-weight:400;font-size:14px;padding:2px 8px;border-radius:12px}
.pages.ok{background:#dcfce7;color:#166534}.pages.bad{background:#fee2e2;color:#991b1b}
.st{padding:4px 16px;font-size:13px;color:#6b7280}
dialog{border:0;border-radius:12px;padding:0;box-shadow:0 20px 60px rgba(0,0,0,.3);width:min(520px,92vw)}
.dlgf{padding:18px 22px;display:flex;flex-direction:column;gap:10px}
.dlgf h3{margin:0}.dlgf h4{margin:8px 0 0}
.dlgf label{display:flex;align-items:center;gap:8px}
.dlgf input[type=password],.dlgf input#slug{flex:1;font:inherit;padding:6px 8px;border:1px solid #cbd5e1;border-radius:6px}
.pre{color:#6b7280}
.row{display:flex;gap:10px}
.row button{font:inherit;padding:6px 14px;border-radius:6px;border:1px solid #cbd5e1;background:#f8fafc;cursor:pointer}
.row button.pri{background:#10b981;border-color:#10b981;color:#06281d;font-weight:700}
.res{min-height:1.4em;word-break:break-all}.res.err{color:#b91c1c}
.res a{color:#2563eb}
.list{margin:0;padding-left:18px}.list li{margin:4px 0}
.list button{margin-left:8px;font-size:12px;padding:1px 8px;border:1px solid #fca5a5;background:#fff;color:#b91c1c;border-radius:4px;cursor:pointer}
@media print{body>*:not(.wrap){display:none!important}.wrap{display:block;padding:0}.ed,.pv>.hd{display:none!important}
  .pv,.scroller{display:block;overflow:visible;background:#fff;padding:0;box-shadow:none;border-radius:0}.sheet{transform:none!important;height:auto!important}.guides{display:none}}
@media (max-width:820px){.wrap{grid-template-columns:1fr}.ed{min-height:40vh}}